Old San Juan Thermal Spa: Hot/Cold Plunge, Sauna, Steam & Gym

Before leaving Puerto Rico, give yourself one final experience designed to help you slow down. Located in the historic streets of OSJ, Las Ruinas is a full-circuit thermal spa and wellness destination. During your session, move through four distinct wellness environments at your own pace: - A heated swimming pool and contrast plunge pools - Three heat experiences: dry sauna, infrared sauna, and eucalyptus steam room - A restorative lounge with unlimited herbal tea and light snacks - A fully equipped wellness gym Every visit includes a robe, slippers, a dedicated locker, and unlimited fresh towels. Simply bring your swimsuit and let us take care of the rest. Between thermal circuits, settle into our peaceful lounge, wrap yourself in a soft towel, and enjoy a quiet moment away from the pace of the city. Before you leave, stop by our in-house Smoothie Spa for a nourishing blend made to refresh and refuel you. Open daily until 7:00 p.m. and until 8:00 p.m. on weekends.